Over the last four decades, a formal, nonprofit institutional structure has come to dominate socialjustice work in the U.S., replacing prior traditions of volunteer- and membership-based organizing, and other less hierarchal, more participatory mechanisms of civic engagement. Today, such institutional nonprofits constitute the bulk of the work of advocacy, research, litigation, service delivery, and organizing on issues of sexual orientation and gender identity. As part of the Engaging Tradition Project at the Center for Gender and Sexuality Law at Columbia Law School, this conference explores the ways in which the nonprofit model has affected the aspirations, organization, mobilization, and vision of the U.S. LGBT movement. How are activists responding? What methods are we using both within and outside nonprofits to evaluate the impact of their work? Activists and scholars discuss their experiments and offer a range of perspectives at this two-day event.